Eleoteio bell



No. 749,365; PATENTED JAN. 12, 1904.

H. E. DEY. ELECTRIC BELL.

APPLICATION FILED AUG. 15, 1901. No Menu.

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.To all whom it may concern.-

I Be it known that I, HARRY E. DEY, a citizen Bronx borough, in thecounty and State of New York, have invented certain new and usefulImprovements in Electric Bells, which improvements are fully set forthin the following specification and accompanying drawings, and in thelatter- Figure 1 is a central vertical section of an electric bellembodying my said improve- .ments, the section being taken as along theline a a of Fig. 2. Fig. 2 is a bottom plan view, the secondary resonantmember which I purpose employing being removed to better disclose theoperative mechanism. Fig. 3 is a detail end elevation view of theoperative ondary resonant members being omitted; Fig. 4 is a diagramillustrating the battery, resonant members, and circuit connections as Ipurpose to employ same.

Similar referencenumerals denote like ings.

This invention relates to improvements in devices of that class commonlyknown as 1 electric bells, the same beingextensively utilized in variouslocations as mediums whereby the attention of individuals may becommanded.

The objects of this invention are to provide a bell of the characterabove indicated which gards construction; which shall be positive andreliable in operation; which shall ordinarily embody operative partssubstantially housed against the deteriorating, injurious, andundesirable effects of dust, dirt, water, and other foreign substances;which shall be so constructed as to render practicable the attainment ofa chime effect when desired; which shall be attractive in appearance,and which shall possess certain Well defined advantages over prioranalogous devices.

The invention consists in the employment of certain parts novel as toform, in the novel disposition and arrangement of the various parts ofthe general construction, in certain combinations, and in certaindetails of con- UNITED STATES of the United States, residing at NewYork,

mechanism of the bell, the primary and sec-i parts throughout theseveral views of the draw-.

shall be simple, inexpensive, and novel as re-.

Patented. January 12, 1904.

PATENT OFFICE;

HARRY DEY/OF NEW YORK, N. Y.

- ELECTRIC BELL. f

SPECIFICATION forming part of Letters Patent 749,3 5, dated'i fanuar y12, 1904.

Application filed August 15, 1901. Serial No. "72,086. (No modelstruction, all of'which will be specifically re-a ferred to hereinafterand set forth in. the appended claims. I .2 I

In general terms my improved electric bell comprises a magnet-saddle, apair of resonant members carried by and arranged SLIlDStiLIh tiallyatright angles to the axis of the magnet-saddle, and an electricallycontrolled striker arranged transversely of and at'an in-J clination tothe axisof the magnet-saddle, the

said resonant members serving to substantially inclose the magnet-saddleand striker and the said striker having a line of reciprocating movementextending obliquely from one of the resonant members to the other andbeing adapted to engage inits movements the respective resonant members.

'Having reference to the accompanying drawings, the magnet saddle 2which-I employ is there shown as in the form of an annulus or ring,having a primary shoulder 2', ter' minating in a reduced extension 2,the latter alining with the axis of the bell proper, and a secondaryshoulder 3, located diametrically opposite the shoulder2 and terminatingin a reduced extension 3.

I dispose within the saddle 2 an electromagnet, here shown as comprisingthe core 3', cpposing disks i L, supporting the core 3", coil 4L on thecore 3intermediate of the disks 4 l, and an exterior casing or sleeve 5,the latter serving as a general tie member for hold,- ing the foregoingparts firmly in their respective positions for service and with thedisks 4 4 fully inclosing the coil 4. Disk 4 is preferably of steel andserves as a yoke for the electromagnet, while disk L is of non-magneticmaterial.

5 is a striker, preferably of non-magnetic material, the same being hereshown as elongated or in the form of a rod and extending longitudinallythrough the magnet-core 3". The striker 5' carries an armature 5", whichunder normal conditions is located adjacent to onepole of the magnet,the opposite pole of said magnet being formed by the casing or sleeve 5.

I interpose between the armature 5 and the electromagnet'proper anelastic element 6, indicated in the accompanying drawings as in the formof a spiral spring encircling the striker 5. When arranged as indicatedin Fig. l of the drawings, it is insulated from the core 3 or from thearmature 5". The normal tendency of the elastic element 6 is toyieldingly urge the striker 5, with its armature 5, along its line ofmovement away from the electromagnet in one direction.-

6 is a leading-in wire running downwardly within the extension 2, thelatter being hollow to permit this disposition of said wire. The wire 6contacts at its lower extremity with the contact member 6", the latterbeing formed from metal, preferably having the quality of resiliency,and being suitably supported for. service, as at the shoulder 2, andbeing insulated from all adjacent parts, save the wire 6, with which itcontacts, the lower extremity of thelatter leading from the interior. ofthe extension 2 outwardly to engagement therewith, as. by way of thelateral opening 7, with which the extension 2 is provided. The contactmember 6 is of such a character that its free end normally makesconnectionwith the post 7, extending through the disk 4 and insulatedtherefrom, as by means of the bushing 7, to connection with the innerend of the coil 4", the otherend of the latter being grounded to thesaid magnet, in suitable connection with which a leading-out wire, as 8,is employed. In Fig. 1 I have shown a supplemental extension 8, whichalines with the extension 2 and contacts therewith, and where thisconstruction is adopted the shoulder 2, extension 2, and supplementalextension 8 form the leading-out circuit for connection with the wire 8.

The free end of the contact member 6" terminates in the line of movementof the catch 8, the latter of non-magnetic material and shown in theaccompanying drawings as in the form of a washer fixed to or upon theadjacent end of the striker 5. The purpose of the catch 8 will appearhereinafter. I also interpose between the catch 8" and the electromagnetproper an elastic element 9, illustrated in the drawings as in the formof a semielliptical leaf-spring, and the same tends to cushion therecoil of the striker 5 in the practical operation of my improved belland serves a further purpose to be hereinafter explained.

Platinum contact-points are preferably employed, one at the free end ofthe contact member 6" and the other at the outer end of post 7, as incommon practice, and the striker 5 is provided with service-tips 9 9,one a each end thereof.

In connection with my improved bell I further make use of one or moreresonant members, as 10 10, using a pair of such members varying inpitch or tone where a chime effect is desired. The members 10 10 aredished or cup-shaped, and when in position for service, as indicated inFig. 1, open one toward the other and substantially inclose and housethe operative parts of my improved bell, thus well protecting such partsagainst the interference of foreign substances. As, however, the members10 10 in practice should not contact one with the other, any slightquantity of water or the like that may find its way to the interior ofthe bell through the slight space which is permitted to intervenebetween said resonant members may escape therefrom by way of the samespace or by way of a suit able opening or openings, as 10", formed inone or both of the members 10 10 and according to the position occupiedby the bell. As here shown, the member 10 is located at the shoulder 3,and member 10 is located at the shoulder 2, with an intervening washer11. They are held in position in any desired and well-known manner. Iprefer, however, to provide each of the resonant members with a centralthreaded opening, so that, say, member 10 may be seated at the shoulder3 by means of the threaded extension 3 and there securely held, as bymeans of a nut 11, and member 10 may be seated at 'the shoulder 2 or anintervening washer, as 11, by means of the threaded extension 2 andthere securely held, as by means of the keeper 11, which latter isadapted to have a threaded engagement with the extension 2 after themanner of a nut and which serves also to duly space the bell proper fromits supporting medium, as.

12, and this supporting medium may be a member of a vehicle-body, as thebase, a member of a building, or may be any other part adapted tosupport the bell in position for service.

Obviously the keeper 11 and supplemental extension 8 may in someinstances be dispensed with; but where the former is employed and it isdesired to fasten the same as a permanent fixture to the mediumsupporting the bell and at the same time permit ready detachment ofthe'bell therefrom I prefer to make use of the latter or an analogouselement or elements for accomplishing this end. As illustrated in thedrawings, the extension 8 has a threaded engagement with the keeper 11and extends through and somewhat beyond the supporting medium 12 toreceive a nut 12 and intervening washer 12 if the latter is desired. Itwill be seen that with this construction and with the circuit-wiresbeing suitably disconnected the bell proper may be removed from orreturned to engagement with said keeper without afiecting the latter. Inconnection with my improved bell a battery or other suitable current orelectric generator and a push-button, as 13, or analogous device areemployed in circuit with the leading-in and leading-out wires 6 8, as incommon practice and as clearly indicated in Fig. 4c. In operation, thecircuit being closed, as by properly manipulating the push-button 13,the striker 5 receives a reciprocating movement, for the reason that theelectromagnet of the bell attracts the armature which, being fast a onsaid striker, causes the latter to move longitudinally and rapidly inonedirection against a the tendency of the elastic element 6, duringvhich movement of the striker catch 8" enages the free end of theresilient contact membreaking the circuit at that point, whereuponthestriker 5 sustains a forcible thrust in the opposite directionthrough the medium of the lastic element 6, thereby causing catch 8 toecede from its engagement with the free end of the member 6andpermitting reestablishi ment of the circuit through the return of thefree end of the member 6 to engagement with thepost 7 Then thearmature5" is again attracted by the magnet of the bell, as above described, andthis operation is continued so long a as the circuit is closed, asthrough the medium of the pushbutton 13, and a reciprocating movement isthus imparted to striker 5. The movement of the striker 5 underattractive "t'orce between the magnet of the bell and the armature 5 isat all times cushioned by means a said striker in the opposite directionis cushioned as it approaches its termination by means of the elasticelement 9, the elements 6 and 9 i being properly adjusted as to elastictendency to yieldingly hold the striker out of contact with both of theresonant members 10 10 un- 9 may or may not travel with the striker 5.As the resonant members 10 10 are arranged at right angles to themagnet-saddle and the line of movement or longitudinal axis of thestriker is at an inclination to the axis of the magnet-saddle when saidstriker is moved in one direction, as under attractive force between,the magnet of the bell and the armature 5", its tip 9 engages andquickly recedes from the i resonant member 10, and on the returnmovementof said striker or its movement under the gages and quicklyrecedes from the resonant member 10, thus, where the members 10 10 var yin tone or pitch, producing a chime efiect. It will be understood,however, that where this chime efiect is not desired, or the inclosingof the operative parts is immaterial, one or the otherof the resonantmembers 10 10 may be dispensed with, in which event the bell will havethe character of a single-gong bell. It will be seen that my improvedelectric bellis particularly well adapted for the purpose for which itis intendechand as the same may be modified to some extent without ma-;of my invention 1 do not wish to be under stood as limiting myself tothe precise details of construction herein set forth.

Having fully described my invention, what ber 6" and urges it away fromthe post 7, thus jot the elastic element 6, and the movement of a d ernormal conditions, and the elastic element tendency of the elasticelement 6 its tip 9 enterial departure from the spirit and principle Iclaim, and desire to secure by Letters Patfor controlling said circuit,substantially as herein specified.

2. A bell comprising an electrically-controlled striker; a pair ofcup-shaped resonant members duly supported and forming a substantialhousing for said striker; means for supporting said members; an electricgener- -ator; circuit connections between said generator and striker,and means for controlling said circuit, the said striker being arrangedfor longitudinal reciprocating movement along a line intersecting bothof' said resonant members, substantially as herein specified.

3. A bell comprising amagnet-saddle having a hollow extension aliningwith the axis of the bell proper; a pair of cup-shaped resonant membersduly supported and forming a substantial housing for said magnet-saddle;an electromagnet at said saddle; areciprocating striker at said magnetand controlled thereby, said striker bemg disposed so as to reciprocatein al'ine intersecting both of said resonant members; an electricgenerator; circuit connections between said generator and magnet, andmeans for controlling said circuit, the said circuit connectionscomprising a portion disposed interiorly of said hollow extension,substantially as herein specified.

4:. A bell comprising a magnet-saddle having a hollow extension aliningwith the axis of the bell proper; a pair of cup-shaped members, one ofwhich is resonant, and-the said members being duly supported and forminga substantial housing for said magnet-saddle; an electromagnet at saidsaddle; areciprocating striker at said magnet and controlled thereby,said striker being disposed so as to reciprocate in a line intersectingboth of said cup-"shaped members; an electric generator; circuitconnections between said generator and magnet, and means for controllingsaid circuit, the said circuit connections comprisingaportion disposedinteriorly of said hollow extension, substantially as herein specified.

HARRY E. DEY.

Witnesses:

P. BoHMAN,

GEORGE G. ENTZ.

